Correlation versus mean-field contributions to excitons, multi-excitons, and charging energies in semiconductor quantum dots

Abstract

Single-dot spectroscopy is now able to resolve the energies of excitons, multi-excitons, and charging of semiconductor quantum dots with ~<1 meV resolution. We discuss the physical content of these energies and show how they can be calculated via Quantum Monte Carlo (QMC) and Configuration Interaction (CI) methods.

14 pages, 9 figures (to appear in Phys. Rev. B)

References in corpus (8)

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• Crossover from Fermi liquid to Wigner molecule behavior in quantum dots
• Electron correlation in C_(4N+2) carbon rings: aromatic vs. dimerized structures
• Carrier-Carrier Correlations in an Optically Excited Single Semiconductor Quantum Dot
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Cited by in corpus (22)

• Multiexcitons confined within a sub-excitonic volume: Spectroscopic and dynamical signatures of neutral and charged biexcitons in ultrasmall semiconductor nanocrystals
• Carrier multiplication yields in PbS and PbSe nanocrystals measured by transient photoluminescence
• Carrier multiplication yields in CdSe and CdTe nanocrystals by transient photoluminescence
• Excitons, biexcitons and trions in self-assembled (In,Ga)As/GaAs quantum dots: Recombination energies, polarization and radiative lifetimes versus dot height
• Fine structure and size dependence of exciton and bi-exciton optical spectra in CdSe nanocrystals
• Biexciton recombination rates in self-assembled quantum dots
• Influence of symmetry and Coulomb-correlation effects on the optical properties of nitride quantum dots
• Multiple exciton generation in nano-crystals revisited: Consistent calculation of the yield based on pump-probe spectroscopy
• Single-Particle-Picture Breakdown in laterally weakly confining GaAs Quantum Dots
• Photoluminescence pressure coefficients of InAs/GaAs quantum dots
• Electronic states of (InGa)(AsSb)/GaAs/GaP quantum dots
• Electric field induced tuning of electronic correlation in weakly confining quantum dots
• Calculation of the biexciton shift in nanocrystals of inorganic perovskites
• Ab-initio variational wave functions for the time-dependent many-electron Schrödinger equation
• Photoluminescence spectroscopy of trions in quantum dots: a theoretical description
• Tuning biexciton binding and anti-binding in core/shell quantum dots
• A simple variational quantum Monte Carlo-effective mass approach for excitons and trions in quantum dots
• All-order correlation of single excitons in nanocrystals using a $\mathbf{k}\cdot \mathbf{p}$ envelope-function approach: application to lead-halide perovskites
• Many-body correlations brought to light in absorption spectra of diluted magnetic semiconductors
• Polarization dependence of emission spectra of multiexcitons in self-assembled quantum dots
• Coulomb correlated multi-particle states of weakly confining GaAs quantum dots
• Role of excited states in the dynamics of excitons and their spins in diluted magnetic semiconductors